Hot pressing forming method and hot pressing forming machine for thermoplastic glass fiber reinforced plate

Abstract

The present invention belongs to the technical field of high-performance glass fiber board production, and specifically relates to a hot pressing molding method and a hot pressing molding machine for a thermoplastic glass fiber reinforced board, wherein the hot pressing molding method comprises the following steps: S1, the glass fiber reinforced board is placed in the second transfer groove of the transfer plate and rotated to the bottom of the hot pressing device, the second transfer groove overlaps with one of the first transfer grooves on the transfer platform, the hot pressing end of the hot pressing device descends into the second transfer groove and hot presses the glass fiber reinforced board; S2, the hot pressing end of the hot pressing device rises, the first driving device drives the detachment plate to curl, and the detachment plate gradually detaches from the glass fiber reinforced board; S3, the transfer plate drives the glass fiber reinforced board after hot pressing to rotate and discharge from another first transfer groove on one side of the first transfer groove directly below the hot pressing device. The present invention can realize the convenient demoulding of the glass fiber reinforced board and avoid damage to the surface of the glass fiber reinforced board.

Description

Technical Field

[0001] The invention belongs to the technical field of high-performance glass fiber board production, and in particular relates to a hot pressing molding method and a hot pressing molding machine for a thermoplastic glass fiber reinforced board. Background Art

[0002] The glass fiber board hot press is an indispensable and important equipment in the production of fiber composite materials. It is mainly used for hot pressing of glass fiber boards. Through the heating system and pressure system of the hot press, the temperature and pressure can be accurately controlled to press the glass fiber board into shape, and the carbon fiber cloth is compounded with the resin matrix to form a strong structure, thereby improving the mechanical properties and stability of the composite material.

[0003] However, when using the existing fiberglass board hot press, it is necessary to consider the cooling time and the uniformity of heating the board: First, although the machine is easy to operate during the placement of the board, after the hot pressing is completed, it is necessary to wait for the board to cool naturally to the appropriate temperature and then be manually removed from the pressing plate. This cooling process is time-consuming and greatly affects production efficiency. Secondly, the hot press can only hot press one side of the board, which leads to uneven heating of the board, which not only prolongs the heating time and increases energy consumption, but also ultimately affects the overall quality of the board after heating, reducing the quality of the product.

[0004] Chinese patent CN215517150U discloses a frame-type hot press for producing glass fiber boards with high safety, including an installation box, wherein both left and right sides of the installation box are fixedly connected with a fixed shell, the interior of the fixed shell is fixedly connected with a sliding rod, one side of the sliding rod is fixedly connected with an anti-slip block, the outer surface of the sliding rod is movably connected with a placement mechanism, and hot pressing mechanisms are arranged on both sides of the interior of the installation box.

[0005] Although the above scheme can quickly cool down the board and reduce the heating time, it needs to be demolded after hot pressing. The traditional demolding method is prone to the glass fiber board sticking to the mold, that is, it is more laborious to remove the glass fiber board from the mold. If the removal method is improper, the glass fiber board will be damaged, reducing the yield rate. At the same time, the existing hot pressing molding machine will also have the hot pressing part and the surface of the glass fiber board sticking when it is separated after hot pressing. This will cause the surface of the glass fiber board to be pulled when the hot pressing part is separated, and it is easy to damage the surface of the glass fiber. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a hot pressing forming method and a hot pressing forming machine for a thermoplastic glass fiber reinforced board in view of the shortcomings of the prior art. The present invention can not only realize the convenient demolding of the glass fiber reinforced board, but also avoid the situation in which the demolding unit pulls the surface of the glass fiber reinforced board due to the large resistance during demolding, thereby causing damage to the surface of the glass fiber reinforced board.

[0007] This solution is achieved through the following technical measures: A hot pressing molding method for a thermoplastic glass fiber reinforced plate comprises the following steps:

[0008] S1. Place the un-hot-pressed glass fiber reinforced board in the second transfer groove of the transfer plate. The transfer plate rotates so that the un-hot-pressed glass fiber reinforced board rotates to the bottom of the hot pressing device. At this time, the second transfer groove holding the un-hot-pressed glass fiber reinforced board overlaps with one of the first transfer grooves on the transfer platform. The demoulding unit is in a horizontal state. The hot pressing end of the hot pressing device descends into the second transfer groove and hot presses the glass fiber reinforced board on the first support plate.

[0009] S2. After the hot pressing is completed, the hot pressing end of the hot pressing device rises, and the first driving device drives the separation plate to curl, and the separation plate gradually separates from the glass fiber reinforced plate;

[0010] S3, the transfer plate drives the glass fiber reinforced plate to rotate after the hot pressing, and the plate is discharged from another first transfer trough on one side of the first transfer trough directly below the hot pressing device.

[0011] The present invention also provides a hot pressing molding machine for thermoplastic glass fiber reinforced boards used in the hot pressing molding method of the above-mentioned thermoplastic glass fiber reinforced boards, comprising a base, a hot pressing device and a demolding unit, wherein the demolding unit is arranged directly below the hot pressing device, and the demolding unit has a bent state and a horizontal state. The demolding device receives the glass fiber reinforced board in the horizontal state, and the hot pressing device presses the glass fiber reinforced board located on the demolding unit. After the pressing is completed, the demolding unit switches to a bent state, and the demolding unit bends from the side of the glass fiber reinforced board toward the center of the glass fiber reinforced board.

[0012] Preferably, the demoulding unit comprises a first support plate and a curling assembly; the first support plate is horizontally arranged directly below the hot pressing device; two curling assemblies are provided, and the curling assemblies are respectively arranged on both sides of the first support plate.

[0013] Preferably, the curling assembly includes a detachment plate, a first driving device and a lifting frame; a plurality of detachment plates are provided, the cross-section of the detachment plates is triangular, and the detachment plates are evenly arranged on one side of the first support plate in the horizontal direction; the lifting frame is provided below the first support plate; the first driving device is obliquely provided on the lifting frame, the driving end of the first driving device is hinged to the detachment plate farthest from the first support plate among the arranged detachment plates, and the driving end of the first driving device can be extended and retracted along the length direction of the first driving device.

[0014] Preferably, the demoulding unit further comprises a supporting unit, the upper portion of the supporting unit is fitted with the lower portion of the supporting plate and the lower portion of the planar curling assembly, and the supporting unit supports the supporting plate and the planar curling assembly.

[0015] Preferably, the support unit includes a second support plate and a first lifting device; the second support plate is moved along the height direction of the base and is arranged below the first support plate, and the second support plate supports the first support plate and the curling assembly in a horizontal state; the first lifting device is arranged below the second support plate, and the first lifting device is used to drive the second support plate to move.

[0016] Preferably, a heating plate is provided on the upper portion of the second supporting plate.

[0017] Preferably, the support unit further comprises a heat dissipation component, which is disposed on the second support plate, and both the first support plate and the second support plate are thermally conductive.

[0018] Preferably, the hot pressing molding machine also includes a transfer device, which includes a transfer table and a transfer plate; the transfer table is a circular structure, which is fixedly arranged on the upper part of the base, and a first transfer groove is opened on the transfer table along the height direction of the base, and two first transfer grooves are arranged around the axis of the transfer table; the transfer plate is a circular structure, which is rotatably arranged on the upper part of the transfer plate along the axis of the transfer table, and a second transfer groove is opened on the transfer plate along the height direction of the base, and the hot pressing end of the hot pressing device can extend into the second transfer groove, and the hot pressing end of the hot pressing device, the second transfer groove and the upper end face of the demolding unit constitute a hot pressing cavity.

[0019] Preferably, the support unit also includes a second lifting device and a fixed frame; the fixed frame is fixedly arranged at the lower part of the transfer platform, and the fixed frame is located directly below the hot pressing device; the second lifting device is arranged on the fixed frame, and the driving end of the second lifting device is connected to the bottom of the lifting frame, and the second lifting device drives the upper end surface of the first support plate to descend to a coplanar state with the upper end surface of the transfer platform through the lifting frame before the first driving device is driven.

[0020] Beneficial effects of the present invention:

[0021] The present invention provides a demoulding unit to place the unhot-pressed glass fiber reinforced board in the second transfer groove of the transfer plate, and the transfer plate rotates so that the unhot-pressed glass fiber reinforced board rotates to the bottom of the hot pressing device. At this time, the second transfer groove holding the unhot-pressed glass fiber reinforced board coincides with one of the first transfer grooves on the transfer platform, and the demoulding unit is in a horizontal state. The hot pressing end of the hot pressing device descends into the second transfer groove and hot presses the glass fiber reinforced board located on the first supporting plate. After the hot pressing is completed, the hot pressing end of the hot pressing device rises, and the first driving device drives the detachment plate to curl, and the detachment plate gradually detaches from the glass fiber reinforced board, and the transfer plate drives the glass fiber reinforced board after the hot pressing is completed to rotate and be discharged from another first transfer groove on the side of the first transfer groove directly below the hot pressing device, so that the glass fiber reinforced board can be easily demoulded, and the demoulding unit can be prevented from pulling the surface of the glass fiber reinforced board due to the large resistance during demoulding, resulting in damage to the surface of the glass fiber reinforced board. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The three-dimensional structure of the hot pressing molding machine of the thermoplastic glass fiber reinforced board in the present invention is shown in FIG. Figure 1 .

[0023] Figure 2 It is a side structural schematic diagram of a hot pressing molding machine for thermoplastic glass fiber reinforced panels in the present invention.

[0024] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle.

[0025] Figure 4 It is a partial three-dimensional structural schematic diagram of a hot pressing molding machine for thermoplastic glass fiber reinforced panels in the present invention.

[0026] Figure 5 yes Figure 4 Enlarged view of point B in the middle.

[0027] Figure 6 The three-dimensional structure of the hot pressing molding machine of the thermoplastic glass fiber reinforced board in the present invention is shown in FIG. Figure 2 .

[0028] Figure 7 The three-dimensional structure diagram of the hot pressing molding machine for thermoplastic glass fiber reinforced board of the present invention after removing the hot pressing device and the transfer device Figure 1 .

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the hot pressing molding machine for thermoplastic glass fiber reinforced panels in the present invention after removing the hot pressing device, the second supporting plate and the transfer device.

[0030] Fig. 9The three-dimensional structure diagram of the hot pressing molding machine for thermoplastic glass fiber reinforced board of the present invention after removing the hot pressing device and the transfer device Figure 2 .

[0031] Fig.10 yes Fig. 9 Enlarged view of point C in the middle.

[0032] The numbers in the figure are:

[0033] 1. Base; 2. Hot pressing device; 3. Demolding unit; 31. First support plate; 32. Curling assembly; 321. Demolding plate; 322. First driving device; 3221. First linear drive; 323. Lifting frame; 33. Support unit; 331. Second support plate; 332. First lifting device; 3321. First rotary drive; 3322. Threaded rod; 3323. Guide rod; 3324. Pressure-maintaining sleeve; 3325. Pressure-maintaining rod ; 3326, valve body; 333, heat dissipation component; 3331, water pump; 334, second lifting device; 3341, second linear drive; 3342, rangefinder; 335, fixed frame; 4, glass fiber reinforced plate; 5, transfer device; 51, transfer platform; 511, first transfer trough; 52, transfer plate; 521, second transfer trough; 53, second drive device; 531, second rotary drive; 532, gear; 533, gear ring. DETAILED DESCRIPTION

[0034] In order to clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods and in conjunction with the accompanying drawings.

[0035] A method for hot pressing a thermoplastic glass fiber reinforced plate comprises the following steps:

[0036] S1, placing the un-hot-pressed glass fiber reinforced board 4 in the second transfer groove 521 of the transfer plate 52, the transfer plate 52 rotates, so that the un-hot-pressed glass fiber reinforced board 4 rotates to the bottom of the hot pressing device 2, at this time, the second transfer groove 521 receiving the un-hot-pressed glass fiber reinforced board 4 overlaps with one of the first transfer grooves 511 on the transfer platform 51, the demoulding unit 3 is in a horizontal state, the hot pressing end of the hot pressing device 2 descends into the second transfer groove 521 and hot presses the glass fiber reinforced board 4 on the first support plate 31;

[0037] S2. After the hot pressing is completed, the hot pressing end of the hot pressing device 2 rises, and the first driving device 322 drives the separation plate 321 to curl, and the separation plate 321 gradually separates from the glass fiber reinforced plate 4;

[0038] S3, the transfer plate 52 drives the glass fiber reinforced board 4 that has completed hot pressing to rotate, and the board is discharged from another first transfer trough 511 on one side of the first transfer trough 511 directly below the hot pressing device 2.

[0039] The present invention also provides a hot pressing molding machine for a thermoplastic glass fiber reinforced board used in the hot pressing molding method of the thermoplastic glass fiber reinforced board, comprising a base 1, a hot pressing device 2 and a demolding unit 3. The demolding unit 3 is arranged directly below the hot pressing device 2. The demolding unit 3 has a bent state and a horizontal state. The demolding device receives the glass fiber reinforced board 4 in the horizontal state. At this time, the hot pressing device 2 presses the glass fiber reinforced board 4 located on the demolding unit 3. After the pressing is completed, the demolding unit 3 switches to a bent state, and the demolding unit 3 bends from the side of the glass fiber reinforced board 4 toward the center of the glass fiber reinforced board 4.

[0040] The hot pressing device 2 is arranged on the upper part of the base 1, and the demoulding unit 3 can receive the glass fiber reinforced board 4 before processing. When the demoulding unit 3 receives the glass fiber reinforced board 4, the demoulding unit 3 is in a horizontal state, that is, the upper end surface of the demoulding unit 3 is parallel to the horizontal plane. Then the hot pressing device 2 is started, and the hot pressing part of the hot pressing device 2 descends and moves toward the demoulding unit 3. After the hot pressing device 2 contacts the upper part of the glass fiber reinforced board 4, the hot pressing device 2 starts hot pressing. After the hot pressing is completed, the formed glass fiber reinforced board 4 is still located on the demoulding unit 3, and the hot pressing part of the hot pressing device 2 is gradually lifted, and the glass fiber reinforced board 4 remains on the demoulding unit 3. At this time, the demoulding unit 3 switches from a horizontal state to a bent state. It is worth noting that the demoulding unit 3 is in a state of bending. When the horizontal state is switched to the bent state, it is bent gradually, that is, the upper end surface of the demoulding unit 3 used to receive the glass fiber reinforced board 4 is a rectangular structure. When the demoulding unit 3 is switched to the bent state, the demoulding unit 3 will first bend from the side of the glass fiber reinforced board 4, and gradually extend toward the middle position of the glass fiber reinforced board 4, so that when the demoulding unit 3 demoulds the glass fiber reinforced board 4, it is gradually peeled off from the side of the glass fiber reinforced board 4 to the center, so that the resistance encountered when the demoulding unit 3 and the glass fiber reinforced board 4 are separated will not be very large, so that the glass fiber reinforced board can be easily demoulded, and the demoulding unit 3 can avoid pulling the surface of the glass fiber reinforced board 4 due to the large resistance during demoulding, resulting in damage to the surface of the glass fiber reinforced board 4.

[0041] Reference Figure 1 and Figure 7 : The demolding unit 3 includes a first support plate 31 and a curling assembly 32; the first support plate 31 is horizontally arranged directly below the hot pressing device 2; there are two curling assemblies 32, which are respectively arranged on both sides of the first support plate 31.

[0042] The first support plate 31 provides support for the curling assembly 32. When the curling assembly 32 is in a bent state, the demolding unit 3 is in a bent state, and the curling assembly 32 is separated from the support for the glass fiber reinforced board 4. When the curling assembly 32 is in a horizontal state, the separation unit is in a horizontal state, and the first support plate 31 and the curling assembly 32 in a horizontal state jointly support the glass fiber reinforced board 4.

[0043] Reference Figure 7 and Figure 8 : The curling assembly 32 includes a detachment plate 321, a first driving device 322 and a lifting frame 323; a plurality of detachment plates 321 are provided, the cross-section of the detachment plates 321 is triangular, and the detachment plates 321 are evenly arranged on one side of the first support plate 31 in the horizontal direction; the lifting frame 323 is arranged below the first support plate 31; the first driving device 322 is obliquely arranged on the lifting frame 323, and the driving end of the first driving device 322 is hinged to the detachment plate 321 farthest from the first support plate 31 among the arranged detachment plates 321, and the driving end of the first driving device 322 can be extended and retracted along the length direction of the first driving device 322.

[0044] The first driving device 322 includes a first linear driver 3221, and both ends of the first linear driver 3221 are hinged to the lifting frame 323 and the detachment plate 321 respectively. When the output end of the first linear driver 3221 is fully extended, the detachment plate 321 arranged on one side of the first support plate 31 is in a horizontal discharge state. However, when the output end of the first linear driver 3221 is gradually retracted, the detachment plate 321 arranged on one side of the first support plate 31 gradually bends, and because the output end of the first linear driver 3221 is connected to the detachment plate 321 farthest from the first support plate 31, the detachment plate 321 is bent. The detachment plates 321 of the support plate 31 are hinged, so that the detachment plates 321 arranged on one side of the first support plate 31 are bent under the pull of the first linear drive 3221. When the curling component 32 completes curling, that is, when the demolding unit 3 is in a bent state, the detachment plates 321 distributed on one side of the first support plate 31 are arranged in an arc shape, and when detaching, due to the adhesion force of the glass fiber reinforced plate 4 on the detachment plates 321, the detachment plates 321 located below the glass fiber reinforced plate 4 can only detach one by one under the drive of the first drive device 322.

[0045] Reference Figure 7 The demoulding unit 3 further comprises a supporting unit 33, the upper portion of the supporting unit 33 is fitted with the lower portion of the supporting plate and the lower portion of the planar curling assembly 32, and the supporting unit 33 supports the supporting plate and the planar curling assembly 32.

[0046] When the curling assembly 32 is in a horizontal state, although it can support the glass fiber reinforced board 4 together with the first support plate 31, it cannot meet the bearing force required for hot pressing. Therefore, it is necessary to support the first support plate 31 and the curling assembly 32 in a horizontal state through the support unit 33, thereby ensuring that when the hot pressing device 2 performs hot pressing on the glass fiber reinforced board 4 on the demolding unit 3, the first support plate 31 and the curling assembly 32 in a horizontal state have good support.

[0047] Reference Figure 7-Figure 10 : The support unit 33 includes a second support plate 331 and a first lifting device 332; the second support plate 331 is moved along the height direction of the base 1 and is arranged below the first support plate 31, and the second support plate 331 supports the first support plate 31 and the curling assembly 32 in a horizontal state; the first lifting device 332 is arranged below the second support plate 331, and the first lifting device 332 is used to drive the second support plate 331 to move.

[0048] The first lifting device 332 includes a first rotation driver 3321, a threaded rod 3322, a guide rod 3323 and a pressure-maintaining component. The first rotation driver 3321 is vertically arranged at the bottom of the lifting frame 323, the threaded rod 3322 is vertically arranged on the lifting frame 323, the two ends of the threaded rod 3322 are respectively connected to the lifting frame 323 and the first support plate 31, the end of the threaded rod 3322 is connected to the output end of the first rotation driver 3321, and the guide rod 3323 is arranged parallel to the axis of the threaded rod 3322. The guide rod 3323 is arranged on one side of the threaded rod 3322, and the two ends of the guide rod 3323 are fixedly connected to the lifting frame 323 and the bottom of the first support plate 31 respectively. There is a gap between the second support plate 331 and the lifting frame 323, and the pressure maintaining component is arranged in the gap. The first rotation driver 3321 is preferably a servo motor. When the first rotation driver 3321 is started, the first rotation driver 3321 drives the second support plate 331 to move up and down along the height direction of the base 1 by driving the threaded rod 3322. When the second support plate 331 When the lifting device 320 is lifted up to the highest position, the pressure maintaining component arranged between the second support plate 331 and the lifting frame 323 is started to maintain pressure. The pressure maintaining component includes a pressure maintaining sleeve 3324, a pressure maintaining rod 3325 and a valve body 3326. The pressure maintaining sleeve 3324 is fixedly arranged at the lower part of the second support plate 331 along the height direction of the base 1, the pressure maintaining rod 3325 is arranged in the pressure maintaining sleeve 3324 along the axis of the pressure maintaining sleeve 3324, the lower part of the pressure maintaining rod 3325 is fixedly connected to the lifting frame 323, and the valve body 3326 is arranged in the pressure maintaining sleeve 33 On one side of 24, when the second support plate 331 rises driven by the first rotation driver 3321, the valve body 3326 is in an open state. When the second support plate 331 rises to the highest position, the valve body 3326 is closed. At this time, the valve body 3326 maintains the pressure of the pressure maintaining sleeve 3324, so that the second support plate 331 can withstand a large pressure. At the same time, under the pressure maintenance of the pressure maintaining component, the threaded rod 3322 will not be subjected to much force, thereby ensuring that the threaded rod 3322 will not be damaged due to a large force.

[0049] Reference Figure 8-Figure 10 : A heating plate is arranged on the upper part of the second supporting plate 331.

[0050] After the heating plate is arranged on the second support plate 331, when the hot pressing device 2 hot presses the glass fiber reinforced board 4 on the first support plate 31, the heating plate on the second support plate 331 is started. Since both the first support plate 31 and the second support plate 331 have thermal conductivity, after the heating plate on the second support plate 331 starts heating, the temperature of the first support plate 31 will also rise. While the first support plate 31 supports the glass fiber reinforced board 4, it can also assist the hot pressing device 2 to heat the lower part of the glass fiber reinforced board 4.

[0051] Reference Fig. 9 and Fig.10The support unit 33 further includes a heat dissipation assembly 333, and the heat dissipation assembly 333 is disposed on the second support plate 331. Both the first support plate 31 and the second support plate 331 have thermal conductivity.

[0052] Since both the first support plate 31 and the second support plate 331 have thermal conductivity, when the heat dissipation component 333 arranged on the second support plate 331 is dissipating heat, the temperature of the second support plate 331 begins to decrease. It is worth noting that when the heat dissipation component 333 is started, the heating plate arranged on the second support plate 331 cannot be started, otherwise the heat dissipation effect of the heat dissipation component 333 will be affected. When the second support plate 331 starts to dissipate heat under the action of the heat dissipation component 333, the first support plate 31 also starts to dissipate heat, so that the glass fiber reinforced plate 4 located on the first support plate 31 can be quickly cooled, thereby improving production efficiency. The heat dissipation component 333 includes a water pump 3331 and a heat dissipation pipeline. The heat dissipation pipeline is arranged in the second support plate 331. Cooling water is stored in the heat dissipation pipeline. The water pump 3331 is arranged on the second support plate 331. The water pump 3331 is connected to the end of the heat dissipation pipeline. The water pump 3331 drives the cooling water in the heat dissipation pipeline to flow when heat dissipation is required.

[0053] Reference Figure 2-Figure 6 : The hot pressing molding machine also includes a transfer device 5, which includes a transfer table 51 and a transfer plate 52. The transfer table 51 is a circular structure, which is fixedly arranged on the upper part of the base 1. A first transfer groove 511 is opened on the transfer table 51 along the height direction of the base 1. There are two first transfer grooves 511, and the two first transfer grooves 511 are arranged around the axis of the transfer table 51; the transfer plate 52 is a circular structure, which is rotatably arranged on the upper part of the transfer plate 52 along the axis of the transfer table 51, and a second transfer groove 521 is opened on the transfer plate 52 along the height direction of the base 1. The hot pressing end of the hot pressing device 2 can extend into the second transfer groove 521, and the hot pressing end of the hot pressing device 2, the second transfer groove 521 and the upper end face of the demolding unit 3 constitute a hot pressing cavity.

[0054] There are three second transfer troughs 521, which are evenly arranged around the axis of the transfer plate 52. The three second transfer troughs 521 correspond to different workstations, namely, loading, hot pressing and unloading workstations. The two second transfer troughs 521 correspond to the hot pressing and unloading workstations, respectively. When loading, the unhot-pressed glass fiber reinforced board 4 is placed in the second transfer trough 521 of the transfer plate 52. When the transfer plate 52 is driven to rotate and passes through the hot pressing device 2, it coincides with the first transfer trough 511. Then the hot pressing device 2 performs hot pressing. After the hot pressing is completed, the transfer plate 52 drives the hot-pressed glass fiber reinforced board 4 to rotate to the second first transfer trough 511, and the glass fiber reinforced board 4 falls from the first transfer trough 511. The transfer device 5 also includes a second driving device 53. The second driving device 53 includes a second rotation driver 531, a gear 532 and a gear ring 533. The second rotation driver 531 includes a gear 532 and a gear ring 533. The driver 531 is vertically arranged on one side of the transfer plate 52, the gear 532 is fixedly arranged on the output end of the second rotation driver 531, and the gear ring 533 is fixedly arranged on the periphery of the transfer plate 52 along the axis of the transfer plate 52, the gear ring 533 and the gear 532 are meshed with each other, and the second rotation driver 531 is preferably a servo motor. When the second rotation driver 531 is started, the second rotation driver 531 drives the gear 532 to drive the gear ring 533 to rotate, so that the transfer plate 52 can be driven to rotate. When the first transfer groove 511 and the second transfer groove 521 coincide with each other, the second rotation driver 531 stops running, and after the hot pressing device 2 completes the hot pressing, the second rotation driver 531 starts again. A positioning component is arranged on the transfer platform 51, and the positioning component is used to position the first transfer groove 511 and the second transfer groove 521. The positioning component is a prior art and will not be repeated here.

[0055] Reference Figure 7-Figure 9 : The support unit 33 also includes a second lifting device 334 and a fixed frame 335; the fixed frame 335 is fixedly arranged at the lower part of the transfer platform 51, and the fixed frame 335 is located directly below the hot pressing device 2; the second lifting device 334 is arranged on the fixed frame 335, and the driving end of the second lifting device 334 is connected to the bottom of the lifting frame 323. Before the first driving device 322 is driven, the second lifting device 334 drives the upper end surface of the first support plate 31 to drop to a coplanar state with the upper end surface of the transfer platform 51 through the lifting frame 323.

[0056] Before hot pressing, the second lifting device 334 drives the first support plate 31 and the curling assembly 32 to rise synchronously. The rectangular structure formed by the first support plate 31 and the curling assembly 32 in a horizontal state has the same shape as the second transfer groove 521. The second lifting device 334 makes the first support plate 31 and the curling assembly 32 in a horizontal state rise to the second transfer groove 521, and then the hot pressing device 2 performs hot pressing. When the first driving device 322 drives the detachment plate 321 to curl, the detachment plate 321 will be blocked by the side wall of the second transfer groove 521 in the second transfer groove 521. In this way, the first support plate 31 and the curling assembly 32 need to be driven down by the second lifting device 334 so that the first support plate 31 and the curling assembly 32 can be lifted up. The upper end surface of the support plate 31 can be coplanar with the upper end surface of the transfer platform 51, so that the transfer plate 52 can move around the transfer platform 51, and the transfer plate 52 pushes the processed glass fiber reinforced board 4 through the second transfer groove 521. The transfer plate 52 pushes the glass fiber reinforced board 4 from the first transfer groove 511 corresponding to the hot pressing station to the first transfer groove 511 corresponding to the unloading station, so that the processed glass fiber reinforced board 4 falls from the first transfer groove 511, and the unloading is completed. The second lifting device 334 includes a second linear drive 3341 and a rangefinder 3342. The second linear drive 3341 is vertically fixed on the fixed frame 335, and the output end of the second linear drive 3341 is vertically upward The rangefinder 3342 is vertically arranged on one side of the second linear drive 3341. The rangefinder 3342 is arranged on the fixed frame 335. The measuring end of the rangefinder 3342 vertically points to the bottom of the lifting frame 323. A controller is arranged on the fixed frame 335. The rangefinder 3342 controls the operation of the second linear drive 3341 through the controller. The second linear drive 3341 is preferably a linear cylinder. The rangefinder 3342 is preset with a specified discharge height and a specified hot pressing height. The specified hot pressing height is greater than the specified discharge height. This is because the first support plate 31 needs to rise to the second transfer trough 521 during hot pressing, while during discharge, only the upper end surface of the first support plate 31 needs to be coplanar with the upper end surface of the transfer platform 51. The specified height corresponds to the state that the upper end surface of the first support plate 31 is coplanar with the upper end surface of the transfer platform 51. When the value measured by the rangefinder 3342 reaches the specified height for material discharge or the specified height for hot pressing, the second linear driver 3341 stops running. When the hot pressing molding machine needs to perform hot pressing on the glass fiber reinforced board 4 through the hot pressing device 2, the value measured by the rangefinder 3342 controls the second linear driver 3341 to stop running through the controller after reaching the specified height for hot pressing. After the hot pressing is completed, the second linear driver 3341 drives the first support plate 31 to descend. The value measured by the rangefinder 3342 controls the second linear driver 3341 to stop running through the controller after reaching the specified height for material discharge.

[0057] Technical features not described in the present invention can be implemented by existing technologies and will not be described in detail here. The present invention is not limited to the above specific embodiments, and changes, modifications, additions or substitutions made by ordinary technicians in the field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A thermoplastic glass fiber reinforced board hot press molding machine, characterized in that: It comprises a base (1), a hot pressing device (2) and a demoulding unit (3); The demoulding unit (3) is arranged directly below the hot pressing device (2). The demoulding unit (3) has a bent state and a horizontal state. When the demoulding device is in the horizontal state, it receives the glass fiber reinforced plate (4). At this time, the hot pressing device (2) presses the glass fiber reinforced plate (4) located on the demoulding unit (3). After the pressing is completed, the demoulding unit (3) switches to a bent state. The demoulding unit (3) bends from the side of the glass fiber reinforced plate (4) toward the center of the glass fiber reinforced plate (4). The demoulding unit (3) comprises a first support plate (31) and a curling assembly (32); The first support plate (31) is horizontally arranged directly below the hot pressing device (2); Two curling assemblies (32) are provided, and the curling assemblies (32) are respectively provided on two sides of the first support plate (31); The first support plate (31) provides support for the curling assembly (32); when the curling assembly (32) is in a bent state, the demoulding unit (3) is in a bent state, and the curling assembly (32) is separated from the support for the glass fiber reinforced plate (4); when the curling assembly (32) is in a horizontal state, the demoulding unit (3) is in a horizontal state, and the first support plate (31) and the curling assembly (32) in a horizontal state jointly support the glass fiber reinforced plate (4); The curling assembly (32) comprises a separation plate (321), a first driving device (322) and a lifting frame (323); A plurality of detachment plates (321) are provided, the cross section of the detachment plates (321) is triangular, and the detachment plates (321) are evenly arranged on one side of the first support plate (31) along the horizontal direction; The lifting frame (323) is arranged below the first supporting plate (31); The first driving device (322) is tiltedly arranged on the lifting frame (323), the driving end of the first driving device (322) is hinged to the detachment plate (321) farthest from the first support plate (31) among the arranged detachment plates (321), and the driving end of the first driving device (322) can be extended and retracted along the length direction of the first driving device (322); The thermoforming machine further comprises a transfer device (5), the transfer device (5) comprising a transfer table (51) and a transfer plate (52); The transfer platform (51) is a circular structure. The transfer platform (51) is fixedly arranged on the upper part of the base (1). A first transfer groove (511) is provided on the transfer platform (51) along the height direction of the base (1). Two first transfer grooves (511) are provided. The two first transfer grooves (511) are arranged around the axis of the transfer platform (51). The transfer plate (52) is a circular structure. The transfer plate (52) is rotatably arranged on the upper part of the transfer plate (52) along the axis of the transfer platform (51). A second transfer groove (521) is provided on the transfer plate (52) along the height direction of the base (1). The hot pressing end of the hot pressing device (2) can extend into the second transfer groove (521). The hot pressing end of the hot pressing device (2), the second transfer groove (521) and the upper end surface of the demoulding unit (3) constitute a hot pressing cavity. Three second transfer troughs (521) are provided. The three second transfer troughs (521) are evenly arranged around the axis of the transfer plate (52). The three second transfer troughs (521) correspond to different workstations, namely, loading, hot pressing and unloading workstations. The two first transfer troughs (511) correspond to the hot pressing and unloading workstations, respectively. When loading, the unhot-pressed glass fiber reinforced board (4) is placed in the second transfer troughs (521) of the transfer plate (52). The transfer plate (52) is driven to rotate and passes through the hot pressing device (2 ) overlaps with the first transfer trough (511), and then the hot pressing device (2) performs hot pressing. After the hot pressing is completed, the transfer plate (52) drives the hot-pressed glass fiber reinforced board (4) to rotate to the second first transfer trough (511), and the glass fiber reinforced board (4) falls from the first transfer trough (511). The transfer device (5) also includes a second driving device (53), and the second driving device (53) includes a second rotation driver (531), a gear (532) and a gear ring ( 533, the second rotary driver (531) is vertically arranged on one side of the transfer plate (52), the gear (532) is fixedly arranged on the output end of the second rotary driver (531), the gear ring (533) is fixedly arranged on the periphery of the transfer plate (52) along the axis of the transfer plate (52), the gear ring (533) and the gear (532) are meshed with each other, the second rotary driver (531) is a servo motor, when the second rotary driver (531) is started, the second rotary driver (531) drives the gear (532) to drive the gear ring (533) to rotate, so as to drive the transfer plate (52) to rotate, when the first transfer groove (511) and the second transfer groove (521) overlap, the second rotary driver (531) stops running, and after the hot pressing device (2) completes hot pressing, the second rotary driver (531) is started again, a positioning component is arranged on the transfer platform (51), and the positioning component is used to position the first transfer groove (511) and the second transfer groove (521).

2. The hot press molding machine for thermoplastic glass fiber reinforced panels according to claim 1, characterized in that: The demoulding unit (3) further comprises a supporting unit (33), the upper portion of the supporting unit (33) being mutually engaged with the lower portion of the first supporting plate (31) and the lower portion of the planar curling assembly (32), and the supporting unit (33) supports the first supporting plate (31) and the planar curling assembly (32).

3. The hot press molding machine for thermoplastic glass fiber reinforced panels according to claim 2, characterized in that: The support unit (33) comprises a second support plate (331) and a first lifting device (332); The second support plate (331) is arranged below the first support plate (31) in a manner movable along the height direction of the base (1), and the second support plate (331) supports the first support plate (31) and the curling assembly (32) in a horizontal state; The first lifting device (332) is arranged below the second supporting plate (331), and the first lifting device (332) is used to drive the second supporting plate (331) to move.

4. The hot press molding machine for thermoplastic glass fiber reinforced panels according to claim 3, characterized in that: A heating plate is arranged on the upper part of the second supporting plate (331).

5. The hot press molding machine for thermoplastic glass fiber reinforced panels according to claim 4, characterized in that: The support unit (33) further comprises a heat dissipation component (333), the heat dissipation component (333) being arranged on the second support plate (331), and both the first support plate (31) and the second support plate (331) have thermal conductivity.

6. The hot press molding machine for thermoplastic glass fiber reinforced panels according to claim 5, characterized in that: The support unit (33) further includes a second lifting device (334) and a fixing frame (335); The fixing frame (335) is fixedly arranged at the bottom of the transfer platform (51), and the fixing frame (335) is located directly below the hot pressing device (2); The second lifting device (334) is arranged on the fixed frame (335), and the driving end of the second lifting device (334) is connected to the bottom of the lifting frame (323). Before the first driving device (322) is driven, the second lifting device (334) drives the upper end surface of the first support plate (31) to descend to a coplanar state with the upper end surface of the transfer platform (51) through the lifting frame (323).

7. A method for hot-pressing a thermoplastic glass fiber reinforced board using the hot-pressing molding machine for thermoplastic glass fiber reinforced board according to claim 6, characterized in that: The steps include: S1, placing the un-hot-pressed glass fiber reinforced board (4) in the second transfer groove (521) of the transfer plate (52), rotating the transfer plate (52) so that the un-hot-pressed glass fiber reinforced board (4) is rotated to the bottom of the hot pressing device (2), at which time the second transfer groove (521) receiving the un-hot-pressed glass fiber reinforced board (4) overlaps with one of the first transfer grooves (511) on the transfer platform (51), the demoulding unit (3) is in a horizontal state, and the hot pressing end of the hot pressing device (2) descends into the second transfer groove (521) and hot presses the glass fiber reinforced board (4) on the first support plate (31); S2, after the hot pressing is completed, the hot pressing end of the hot pressing device (2) rises, the first driving device (322) drives the separation plate (321) to curl, and the separation plate (321) gradually separates from the glass fiber reinforced plate (4); S3, the transfer plate (52) drives the glass fiber reinforced plate (4) that has completed hot pressing to rotate, and discharges it from another first transfer trough (511) on one side of the first transfer trough (511) directly below the hot pressing device (2).

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